package per.hx.bs.aspect;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import per.hx.bs.util.IPAddressUtil;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;

/**
 * @author HuXing
 * @date 2018/3/26  13:07
 */
@Aspect
@Component
public class WebLogAspect {

    private Logger logger = LoggerFactory.getLogger(this.getClass());

    /**
     * 切入点所有的 controller 包下的文件
     */
    @Pointcut("execution(* per.hx.bs..controller.*.*(..))")
    public void logPointCut() {

    }


    @Before("logPointCut()")
    public void doBefore(JoinPoint joinPoint) {
        // 接收到请求，记录请求内容
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        // 记录下请求内容
        logger.info("请求地址 : " + request.getRequestURL().toString());
        logger.info("请求方式 : " + request.getMethod());
        // 获取真实的ip地址

        logger.info("IP地址 : " + IPAddressUtil.getIpAddress(request));
        logger.info("执行方法 : " + joinPoint.getSignature().getDeclaringTypeName() + "."
                + joinPoint.getSignature().getName());
        logger.info("请求参数 : " + Arrays.toString(joinPoint.getArgs()));
        logger.info("参数 : " + Arrays.toString(joinPoint.getArgs()));

    }


    /**
     * 运行完后输出数据
     * <p>
     * returning的值和doAfterReturning的参数名一致
     *
     * @param ret 返回值
     */
    @AfterReturning(returning = "ret", pointcut = "logPointCut()")
    public void doAfterReturning(Object ret) {
        // 处理完请求，返回内容(返回值太复杂时，打印的是物理存储空间的地址)
        logger.debug("返回值 : " + ret);
    }

    @Around("logPointCut()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        long startTime = System.currentTimeMillis();
        // ob 为方法的返回值
        Object ob = pjp.proceed();
        logger.info("执行耗时 : " + (System.currentTimeMillis() - startTime));
        return ob;
    }

}
